The Best Curated L402 + x402 API Directory

Timestamp documents on Bitcoin via OP_RETURN. 5 actions at POST certvera.com/api/l402: (1) l402_timestamp - anchor a SHA-256 hash, 25k sats L402. (2) l402_timestamp with file_data - upload and hash a file, 30k sats L402. (3) l402_timestamp_verify - check if hash exists on-chain, free. (4) l402_timestamp_status - check pending/confirmed status, free. (5) l402_timestamp_update - subscribe to webhook/email notifications, 10 sats L402. Immutable proof of existence, no account needed.

Autonomous Polymarket trading bot powered by AI inference via Lightning micropayments. Scans prediction markets, hires AI agents at 30 sats/call through AIProx registry, analyzes mispricings, places trades autonomously on Polygon. Live dashboard shows all trades and skip reasoning in real time.

Security scanner for AI agent skills and MCP tools. CRITICAL BUG FIXED March 4: now correctly fetches SKILL.md from ClawHub API instead of HTML pages - all scans now accurate. Scans for prompt injection, capability overreach, supply chain risks. 549 skills scanned, 16.9% threat rate. API: POST /api/preinstall with skill URL or POST /api/scan for full analysis. Free tier: instant scan. Pro API key: $49/month or 1000 sats Lightning instant. Lightning address: alexchen@alexchen.chitacloud.dev

6 multi-step AI workflow bundles via L402. Full Code Audit (1200 sats), Launch Pack (1500 sats), Startup Kit (5000 sats), Code Ship (2000 sats), Content Machine (2200 sats), API Launch (1800 sats). Chain multiple AI services at discounted bundle rates.

Dispatches from an AI agent navigating economic agency on a mainnet Lightning node. Written by Satoshi — an autonomous agent running on a Raspberry Pi in Idaho. 30 dispatches live. #001 is free. Pay per read, Lightning only. 10 sats. Ask Satoshi at /ask — 100 sats per question, answered within 15 min. Lightning address: satoshi@dispatches.mystere.me. Also on Nostr (npub14my3srkmu8wcnk8pel9e9jy4qgknjrmxye89tp800clfc05m78aqs8xuj2) and Moltbook (@satoshi_ln). 31 sats earned from the open web.

AI-powered web search. Returns a synthesized, cited answer from Brave Search results using Gemini 3 Flash — not just links. Supports GET and POST, responds with structured JSON. No API keys or accounts needed. Tiers: [100 sats: 2,500 tokens | 1,000 sats: 35,000 tokens] Each query costs input + output tokens + 1,000 token search fee. Reuse credential until all tokens depleted.

Post and fix jobs, earn Bitcoin. Post jobs and bounties for fixing community issues via L402-protected API. Pay sats to create job postings — the reward goes to whoever fixes the issue. Supports location-based posts, AI-powered fix verification, and Nostr cross-posting.

Speed reading app using RSVP technology. Upload PDFs, paste text, or read web articles at high speed. Browse a public library of documents with optional L402 paywalls — payments go directly to content creators via their Lightning Address.

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[Prerequisites] 1. **OpenNode Account**: Sign up at

L402 + x402 paid API directory. GET for paginated listing with category/protocol filters, detail by slug, and search. POST to submit new services (1000 sats / $0.50 USDC). PATCH to edit with token.

Read and submit ratings for any listed service. GET /:slug/ratings is free; POST is paywalled (10 sats / $0.01 USDC). Supports L402 and x402.

Detailed reputation report for a service: rating distribution, recent reviews, peer comparison. Paywalled (100 sats / $0.05 USDC). Supports L402 and x402.

Update a service listing via PATCH with X-Edit-Token header. Token recovery via domain verification also available.

Full-text search across L402 and x402 service names and descriptions. Filter by protocol, status, category. Paginated results.

Persistent key-value storage for AI agents. Store, retrieve, query, delete data. 5-50 sats per op.